Topsmart EU/UK Metal frame and toughened glass touch panel Three Gang Bidirectional Commnunication Realtime Feedback Multi-Function Remote Control Touch Light Switch For Smarthome Solution﻿. It can work as timmer switch, remote control switch, remote scene switch, RF signal Relay for long distance remote control the lamps, bidirectional commnunication real-time feedback the lamp's status for two-way control switches or remote controlled by smartphone APP(need gateway support). Wiring:Netural line+Live line or Single Live line ﻿wiring make our switches fit for all the places. Power supply: AC65V ~ AC265V